ITU-T Rec. Q.850 Addendum 1 (06/2000) Usage of cause and location in the Digital Subscriber Signalling System No. 1 and...
Summary
Source
FOREWORD
Usage of cause and location in the Digital Subscriber Signalling System No. 1 and the Signalling System No. 7 ISDN User part
ADDENDUM 1
1) Cause codes
2) Cause definitions